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3946  Camaro Research Group Discussion / Maintenance / Re: Q-Jet swap problem on: January 07, 2006, 12:52:55 PM
Can't help you with the mismatch issue, but if your intake has the "hot-slot" like the one in the photo below (that's an intake for a Holley, but the same "hot-slot" design was used on many cast-iron Q-Jet intakes), I recommend plugging the holes at each end of the slot with core plugs as shown in the photo. That slot is connected to the exhaust crossover passage, and allows hot exhaust gases to heat the carb base at cold start for improved atomization of the air-fuel mixture, with a stainless steel heat baffle to protect the carb base from direct impingement of the hot gases. Unfortunately, that heat also fries/distorts the carb base and can cause the bottom well plugs to fall out of the Q-Jet float bowl, resulting in engine fires. GM recalled millions of Q-Jet-equipped cars with this "hot-slot" design in 1969 due to the fire problem, and abandoned the "hot-slot" design in 1970.

What's the casting number on your intake?
3947  Camaro Research Group Discussion / Restoration / Re: Help trouble shooting a cowl induction system on: January 07, 2006, 12:37:03 PM
Yes, there are two power sources - one for the switch to the relay coil (pink wire from the "Ign" cavity), and one to the points for the solenoid (tan wire from the "Acc" cavity).

Photo below of the relay and its connections - the "T" connector has two wires; the inboard pink wire is power from the fuse block through the throttle arm switch to the relay coil, the tan wire next to it is power out to the solenoid from the points in the relay, and the single connector on the outboard side of the relay is power-in to the points from the fuse block. There are no black wires in the original configuration - the wire from the relay to the solenoid is tan.
3948  Camaro Research Group Discussion / Restoration / Re: Help trouble shooting a cowl induction system on: January 06, 2006, 01:00:27 PM
A pink wire from the "Ign" cavity in the fuse block goes to one side of the switch, and a pink wire from the other side of the switch goes to the coil in the relay; the relay coil grounds through the case tab, where it's screwed to the firewall. When the switch is closed at WOT, that sends 12V to the relay coil, which closes the points in the relay. One side of the points has a tan wire to the fuse block (power), and the other side of the points has a tan wire that goes up to the solenoid in the hood, which is grounded through its attachment to the hood. When the relay points close at WOT, that sends 12V through the tan wire to the solenoid, which energizes it and opens the air valve. If you don't have a good clean ground where the solenoid is attached to the hood, it won't work. The reproduction throttle arm switch is junk - the GM switch works fine.
3949  Camaro Research Group Discussion / General Discussion / Re: 15" 1969 Z/28 tires on: January 06, 2006, 12:36:14 PM
Firestone doesn't make ANY tires like that any more, but Coker does; they make Wide Oval reproduction tires in four 14" sizes and four 15" sizes. The 15" sizes are E70-15, F70-15, G70-15, and F60-15.
3950  Camaro Research Group Discussion / Restoration / Re: Engine numbers on: January 05, 2006, 11:57:14 AM
Taper-decking is a BAD idea - screws up lots of important relationships. Most shops want to deck every block as a routine part of a rebuild, but if the deck doesn't vary more than .003" from dead flat, it'll work fine with composition head gaskets (but won't with production-type steel shim gaskets).  Smiley
3951  Camaro Research Group Discussion / General Discussion / Re: Speedo cable on: January 05, 2006, 11:43:21 AM
Don't have a photo, but it's a black plastic Caplug, installed from the engine side of the firewall.  Smiley
3952  Camaro Research Group Discussion / Restoration / Re: pan gaskett on: January 04, 2006, 01:41:08 PM
The one-piece Fel-Pro gasket is more likely to be leak-free, but you'll see the blue edge of it all the way around the pan. The stock 4-piece gaskets can also be leak-free with careful installation and attention to making sure the flange on the pan is dead flat, especially at the bolt holes. Your call.  Smiley
3953  Camaro Research Group Discussion / General Discussion / Re: Speedo cable on: January 04, 2006, 01:31:25 PM
Everything except Muncie 4-speeds had the speedo cable hole outboard of the steering column, just below and inboard of the fuse block; Muncie 4-speeds had the cable hole inboard of the steering column, just below and slightly inboard of the wiper motor. The standard hole near the fuse block was in all cars, and had a plug installed in it on Muncie 4-speed cars. Photo below of the standard hole near the fuse block.  Smiley
3954  Camaro Research Group Discussion / Originality / Re: Gas Tank Straps+ filler neck on: January 03, 2006, 11:53:57 AM
Either natural or semi-gloss black is correct for the gas tank straps; not sure about Van Nuys cars, but Norwood cars generally had black dip-primed straps. My unmolested original 02D Norwood '69 has dip-primed black straps.  Smiley
3955  Camaro Research Group Discussion / Originality / Re: drive train on: January 03, 2006, 11:47:21 AM
It would have been possible for a 12B body to show up on the Chevrolet side of the plant as late as December 18th, so a December 15th axle isn't out of the question. 12B is the week when the raw body started in the Body Shop at Fisher Body, not when the car was produced at Chevrolet.  Smiley
3956  Camaro Research Group Discussion / Restoration / Re: build dates on: January 01, 2006, 10:53:58 AM
If "C-7" is actually "07C" on your cowl tag, the body build date was the third week of July. Where did you find the "C-7"?
3957  Camaro Research Group Discussion / General Discussion / Re: 69 Camaro How many left. on: December 31, 2005, 10:48:05 AM
here is another funny response,but in reality its something that all of us that own 69 camaros should be concerned about. there will soon be more 69 convertables out there than gm made with the repop convertable bodys that are being reproduced and soon they will be selling the coupes. well its a topic that has me wondering will it make our real 69 camaros worth more or less? something to ponder now that they are repoping phonie camaro bodys now.maybe we should get a number of real 69 camaros before the fake ones or clones take over Grin

With the price of the reproduction body shells and the cost of all the parts to make them into cars, I wouldn't worry about too many of them appearing and diluting the '69 gene pool. Smiley
3958  Camaro Research Group Discussion / Restoration / Re: 12 bolt restoration on: December 30, 2005, 11:17:07 AM
I'd call the axle paint semi-gloss; the pinion flange was masked with a thin cardboard tube to keep paint off the U-joint cap seating surfaces - every now and then we'd get an axle that still had the tube in place.  Smiley
3959  Camaro Research Group Discussion / Restoration / Re: 12 bolt restoration on: December 29, 2005, 10:51:22 AM
When we hoisted the axle out of the shipping rack, the cables were crosswise horizontally across the axle, above the diff nose, and held together with a wire tie so they didn't dangle and get hung up in the rack locators; after setting the axle on the chassis carrier and installing the springs and cable guides, we cut the wire tie, routed the cables, and clipped them into the guides. The cables may have been hanging free when the assembly was painted while on the conveyor at the axle plant, then routed and wire-tied before the axle was transferred into the shipping rack.  Smiley
3960  Camaro Research Group Discussion / Restoration / Re: 12 bolt restoration on: December 28, 2005, 11:27:27 AM
The rear axle assembly (housing, tubes, diff, rear cover, backing plates and drums and parking brake cables) was painted at the axle plant as a completed assembly just before it was placed in the shpping rack; the brake pipes and center block were installed later at the car assembly plants.
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